Growth and yield of direct seeded rice as influenced by different weed management practices
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Keywords:Direct seeded rice, weed management practices, cycle weeder.
AbstractA field experiment was conducted at Main Research Station, Hebbal, Bengaluru during Kharif, 2018 to studyÂ the effect of different weed management methods on growth and yield of direct seeded rice. The experimentÂ consisted 11 treatments and replicated thrice in RCBD design. Among various weed management treatmentsÂ passing cycle weeder and hand weeding at 20 and 35 DAS recorded significantly higher growth and yieldÂ parameters of direct seeded rice. However, it was on par with application of triafamone + ethoxysulfuronÂ 30% WG (RM) @ 60 g a.i. ha-1 at 15 DAS followed by passing cycle weeder and hand weeding at 35 DAS orÂ bensulfuron methyl + pretilachlor 6.6% G @ 660 g a.i. ha-1 within 3 DAS followed by passing cycle weederÂ and hand weeding at 30 DAS. Significantly higher direct seeded rice grain and straw yield was recorded inÂ passing cycle weeder and hand weeding at 20 and 35 DAS (5618 and 7259 kg ha-1, respectively) and foundÂ on par with application of triafamone + ethoxysulfuron 30% WG (RM) @ 60 g a.i. ha-1 at 15 DAS followedÂ by passing cycle weeder and hand weeding at 35 DAS (5491 and 7162 kg ha-1, respectively). Weedy checkÂ recorded significantly lowest yield (1400 and 2637 kg ha-1, respectively).
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